Class-Based Queuing Configuration - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
Table 3-18 Display the configuration and statistics of WFQ on one or all interfaces
Display the configuration and statistics
information of WFQ on interfaces

3.6 Class-based Queuing Configuration

The class-based queuing CBQ configuration includes:
Configure the maximum available bandwidth on the interface
Define the class and define a group of traffic classification rules in the class view.
Define traffic behavior, and define a group of QoS features in the traffic behavior
view.
Define the policy, and define the corresponding traffic behavior for the class in use
in the policy view.
Apply QoS policy in the interface or ATM PVC view.
The system pre-defines some classes, traffic behaviors and policies. The detailed
description is given below.
I. Pre-defined classes
The system pre-defines some classes and defines general rules for them. The user can
use the pre-defined classes when defining the policy. The classes include:
1) Default class: default-class, matching the default data flow.
2) DSCP-based pre-defined class: ef, af1, af2, af3, af4, matching IP DSCP values of
ef, af1, af2, af3, af4 respectively.
3) IP priority-based pre-defined class: ip-prec0, ip-prec1, ip-prec7: matching IP
priorities of 0, 1, and 7 respectively.
4) MPLS EXP-based pre-defined class: mpls-exp0, mpls-exp1, ...mpls-exp7:
matching MPLS EXP values of 0, 1, ...7.
II. Pre-defined traffic behaviors
The system pre-defines some traffic behaviors and defines QoS features for them.
1) ef: Defines a feature of input EF queue, occupying 20% of the available bandwidth
of the interface.
2) af: Defines a feature of input AF queue, occupying 20% of the available bandwidth
of the interface.
3) be: Defines no features.
Operation
3Com Corporation
3-17
Chapter 3 Congestion Management
Command
display qos wfq
[ interface-type interface-number ]
interface